This motorcycle is a functional -- well, drivable -- replica of the Batpod from The Dark Knight. Pankaj Shah commissioned Chopper City USA to build it:

Obviously none of the weaponry is functional, and the seating position was also altered. Instead of lying face down like on the Batpod, the PS-Pod's rider sits in a manner more similar to a chopper bike rider - far more practical and you won't look like an idiot when stopped at the traffic lights.

The PS-Pod was constructed using all metal bodywork, no fiberglass was used at all. Mounted within the custom made frame is the drivetrain from an Aprilia Mana 850. The bikes builder, Dave Welch, bought the Aprillia brand-new, and then proceeded to strip it down for its parts.

The massive 18"x13" wheels of the PS-Pod were custom made for the bike. The rims were specially machined, and each has five Batman logos cut into their center.